* [PATCH 0/3] Minor fixes around perf bench
@ 2014-03-27 23:50 Ramkumar Ramachandra
2014-03-27 23:50 ` [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite Ramkumar Ramachandra
` (4 more replies)
0 siblings, 5 replies; 12+ messages in thread
From: Ramkumar Ramachandra @ 2014-03-27 23:50 UTC (permalink / raw)
To: LKML; +Cc: Ingo Molnar, Jiri Olsa, David Ahern, Arnaldo Carvalho de Melo
Hi,
I just started looking at 'perf bench' this afternoon. Here are some
simple patches fixing the minor issues I had while starting out.
Thanks.
Ram
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Ramkumar Ramachandra (3):
perf bench: Set more defaults in the 'numa' suite
perf bench: Update manpage to mention numa and futex
perf bench: Fix segfault at the end of an 'all' execution
tools/perf/Documentation/perf-bench.txt | 22 ++++++++++++++++++++++
tools/perf/bench/numa.c | 4 ++++
tools/perf/builtin-bench.c | 2 +-
3 files changed, 27 insertions(+), 1 deletion(-)
--
1.9.0.431.g014438b
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite
2014-03-27 23:50 [PATCH 0/3] Minor fixes around perf bench Ramkumar Ramachandra
@ 2014-03-27 23:50 ` Ramkumar Ramachandra
2014-04-09 12:16 ` Jiri Olsa
2014-04-14 14:54 ` [tip:perf/urgent] " tip-bot for Ramkumar Ramachandra
2014-03-27 23:50 ` [PATCH 2/3] perf bench: Update manpage to mention numa and futex Ramkumar Ramachandra
` (3 subsequent siblings)
4 siblings, 2 replies; 12+ messages in thread
From: Ramkumar Ramachandra @ 2014-03-27 23:50 UTC (permalink / raw)
To: LKML; +Cc: Ingo Molnar, Jiri Olsa, David Ahern, Arnaldo Carvalho de Melo
Currently,
$ perf bench numa mem
errors out with usage information. To make this more user-friendly, let
us provide a minimum set of default values required for a test
run. As an added bonus,
$ perf bench all
now goes all the way to completion.
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
tools/perf/bench/numa.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index d4c83c6..20697fb 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -1593,6 +1593,10 @@ static void init_params(struct params *p, const char *name, int argc, const char
p->data_rand_walk = true;
p->nr_loops = -1;
p->init_random = true;
+ p->mb_global_str = "1";
+ p->nr_proc = 1;
+ p->nr_threads = 1;
+ p->nr_secs = 5;
}
static int run_bench_numa(const char *name, const char **argv)
--
1.9.0.431.g014438b
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 2/3] perf bench: Update manpage to mention numa and futex
2014-03-27 23:50 [PATCH 0/3] Minor fixes around perf bench Ramkumar Ramachandra
2014-03-27 23:50 ` [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite Ramkumar Ramachandra
@ 2014-03-27 23:50 ` Ramkumar Ramachandra
2014-04-14 14:53 ` [tip:perf/urgent] " tip-bot for Ramkumar Ramachandra
2014-03-27 23:50 ` [PATCH 3/3] perf bench: Fix segfault at the end of an 'all' execution Ramkumar Ramachandra
` (2 subsequent siblings)
4 siblings, 1 reply; 12+ messages in thread
From: Ramkumar Ramachandra @ 2014-03-27 23:50 UTC (permalink / raw)
To: LKML; +Cc: Jiri Olsa, David Ahern, Arnaldo Carvalho de Melo
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
tools/perf/Documentation/perf-bench.txt | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/tools/perf/Documentation/perf-bench.txt b/tools/perf/Documentation/perf-bench.txt
index 7065cd6..4464ad7 100644
--- a/tools/perf/Documentation/perf-bench.txt
+++ b/tools/perf/Documentation/perf-bench.txt
@@ -48,6 +48,12 @@ SUBSYSTEM
'mem'::
Memory access performance.
+'numa'::
+ NUMA scheduling and MM benchmarks.
+
+'futex'::
+ Futex stressing benchmarks.
+
'all'::
All benchmark subsystems.
@@ -187,6 +193,22 @@ Show only the result with page faults before memset.
--no-prefault::
Show only the result without page faults before memset.
+SUITES FOR 'numa'
+~~~~~~~~~~~~~~~~~
+*mem*::
+Suite for evaluating NUMA workloads.
+
+SUITES FOR 'futex'
+~~~~~~~~~~~~~~~~~~
+*hash*::
+Suite for evaluating hash tables.
+
+*wake*::
+Suite for evaluating wake calls.
+
+*requeue*::
+Suite for evaluating requeue calls.
+
SEE ALSO
--------
linkperf:perf[1]
--
1.9.0.431.g014438b
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 3/3] perf bench: Fix segfault at the end of an 'all' execution
2014-03-27 23:50 [PATCH 0/3] Minor fixes around perf bench Ramkumar Ramachandra
2014-03-27 23:50 ` [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite Ramkumar Ramachandra
2014-03-27 23:50 ` [PATCH 2/3] perf bench: Update manpage to mention numa and futex Ramkumar Ramachandra
@ 2014-03-27 23:50 ` Ramkumar Ramachandra
2014-04-14 14:53 ` [tip:perf/urgent] " tip-bot for Ramkumar Ramachandra
2014-03-27 23:57 ` [PATCH 0/3] Minor fixes around perf bench Davidlohr Bueso
2014-04-06 14:23 ` Jiri Olsa
4 siblings, 1 reply; 12+ messages in thread
From: Ramkumar Ramachandra @ 2014-03-27 23:50 UTC (permalink / raw)
To: LKML; +Cc: Jiri Olsa, David Ahern, Arnaldo Carvalho de Melo
At the end of
$ perf bench all
the program segfaults because it attempts to dereference a NULL
pointer. Fix this fault.
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
---
tools/perf/builtin-bench.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index f600b74..1e6e777 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -86,7 +86,7 @@ static struct collection collections[] = {
/* Iterate over all benchmarks within a collection: */
#define for_each_bench(coll, bench) \
- for (bench = coll->benchmarks; bench->name; bench++)
+ for (bench = coll->benchmarks; bench && bench->name; bench++)
static void dump_benchmarks(struct collection *coll)
{
--
1.9.0.431.g014438b
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH 0/3] Minor fixes around perf bench
2014-03-27 23:50 [PATCH 0/3] Minor fixes around perf bench Ramkumar Ramachandra
` (2 preceding siblings ...)
2014-03-27 23:50 ` [PATCH 3/3] perf bench: Fix segfault at the end of an 'all' execution Ramkumar Ramachandra
@ 2014-03-27 23:57 ` Davidlohr Bueso
2014-04-06 14:23 ` Jiri Olsa
4 siblings, 0 replies; 12+ messages in thread
From: Davidlohr Bueso @ 2014-03-27 23:57 UTC (permalink / raw)
To: Ramkumar Ramachandra
Cc: LKML, Ingo Molnar, Jiri Olsa, David Ahern, Arnaldo Carvalho de Melo
On Thu, 2014-03-27 at 19:50 -0400, Ramkumar Ramachandra wrote:
> Hi,
>
> I just started looking at 'perf bench' this afternoon. Here are some
> simple patches fixing the minor issues I had while starting out.
>
> Thanks.
>
> Ram
>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Jiri Olsa <jolsa@redhat.com>
> Cc: David Ahern <dsahern@gmail.com>
> Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
>
> Ramkumar Ramachandra (3):
> perf bench: Set more defaults in the 'numa' suite
> perf bench: Update manpage to mention numa and futex
> perf bench: Fix segfault at the end of an 'all' execution
Acked-by: Davidlohr Bueso <davidlohr@hp.com>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 0/3] Minor fixes around perf bench
2014-03-27 23:50 [PATCH 0/3] Minor fixes around perf bench Ramkumar Ramachandra
` (3 preceding siblings ...)
2014-03-27 23:57 ` [PATCH 0/3] Minor fixes around perf bench Davidlohr Bueso
@ 2014-04-06 14:23 ` Jiri Olsa
4 siblings, 0 replies; 12+ messages in thread
From: Jiri Olsa @ 2014-04-06 14:23 UTC (permalink / raw)
To: Ramkumar Ramachandra
Cc: LKML, Ingo Molnar, David Ahern, Arnaldo Carvalho de Melo
On Thu, Mar 27, 2014 at 07:50:16PM -0400, Ramkumar Ramachandra wrote:
> Hi,
>
> I just started looking at 'perf bench' this afternoon. Here are some
> simple patches fixing the minor issues I had while starting out.
look good to me, will merge them
thanks,
jirka
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite
2014-03-27 23:50 ` [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite Ramkumar Ramachandra
@ 2014-04-09 12:16 ` Jiri Olsa
2014-04-11 0:31 ` Ramkumar Ramachandra
2014-04-14 14:54 ` [tip:perf/urgent] " tip-bot for Ramkumar Ramachandra
1 sibling, 1 reply; 12+ messages in thread
From: Jiri Olsa @ 2014-04-09 12:16 UTC (permalink / raw)
To: Ramkumar Ramachandra
Cc: LKML, Ingo Molnar, David Ahern, Arnaldo Carvalho de Melo
On Thu, Mar 27, 2014 at 07:50:17PM -0400, Ramkumar Ramachandra wrote:
> Currently,
>
> $ perf bench numa mem
>
> errors out with usage information. To make this more user-friendly, let
> us provide a minimum set of default values required for a test
> run. As an added bonus,
>
> $ perf bench all
>
> now goes all the way to completion.
>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Jiri Olsa <jolsa@redhat.com>
> Cc: David Ahern <dsahern@gmail.com>
> Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
> ---
> tools/perf/bench/numa.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
> index d4c83c6..20697fb 100644
> --- a/tools/perf/bench/numa.c
> +++ b/tools/perf/bench/numa.c
> @@ -1593,6 +1593,10 @@ static void init_params(struct params *p, const char *name, int argc, const char
> p->data_rand_walk = true;
> p->nr_loops = -1;
> p->init_random = true;
> + p->mb_global_str = "1";
> + p->nr_proc = 1;
> + p->nr_threads = 1;
> + p->nr_secs = 5;
hi,
I dont claim to understand this benchmark, but I'm now getting this:
$ ./perf bench numa all
# Running numa/mem benchmark...
SNIP
###
# 1 task will execute (on 1 nodes, 4 CPUs):
# -1x 1MB global shared mem operations
# -1x 0MB process shared mem operations
# -1x 0MB thread local mem operations
###
...
'-1x' does not seem right/intentional for default case
thanks,
jirka
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite
2014-04-09 12:16 ` Jiri Olsa
@ 2014-04-11 0:31 ` Ramkumar Ramachandra
2014-04-11 10:33 ` Jiri Olsa
0 siblings, 1 reply; 12+ messages in thread
From: Ramkumar Ramachandra @ 2014-04-11 0:31 UTC (permalink / raw)
To: Jiri Olsa; +Cc: LKML, Ingo Molnar, David Ahern, Arnaldo Carvalho de Melo
Jiri Olsa wrote:
> ###
> # 1 task will execute (on 1 nodes, 4 CPUs):
> # -1x 1MB global shared mem operations
> # -1x 0MB process shared mem operations
> # -1x 0MB thread local mem operations
> ###
> ...
>
>
> '-1x' does not seem right/intentional for default case
As you can see from print_summary(), -1 is the value of nr_loops. In
init_params(), Ingo set nr_loops is set to -1 in his original patch --
I haven't touched that. So, unless I'm missing something, it's quite
an apt default case.
Ram
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite
2014-04-11 0:31 ` Ramkumar Ramachandra
@ 2014-04-11 10:33 ` Jiri Olsa
0 siblings, 0 replies; 12+ messages in thread
From: Jiri Olsa @ 2014-04-11 10:33 UTC (permalink / raw)
To: Ramkumar Ramachandra
Cc: LKML, Ingo Molnar, David Ahern, Arnaldo Carvalho de Melo
On Thu, Apr 10, 2014 at 08:31:32PM -0400, Ramkumar Ramachandra wrote:
> Jiri Olsa wrote:
> > ###
> > # 1 task will execute (on 1 nodes, 4 CPUs):
> > # -1x 1MB global shared mem operations
> > # -1x 0MB process shared mem operations
> > # -1x 0MB thread local mem operations
> > ###
> > ...
> >
> >
> > '-1x' does not seem right/intentional for default case
>
> As you can see from print_summary(), -1 is the value of nr_loops. In
> init_params(), Ingo set nr_loops is set to -1 in his original patch --
> I haven't touched that. So, unless I'm missing something, it's quite
> an apt default case.
fair enough ;-) ok
thanks,
jirka
^ permalink raw reply [flat|nested] 12+ messages in thread
* [tip:perf/urgent] perf bench: Update manpage to mention numa and futex
2014-03-27 23:50 ` [PATCH 2/3] perf bench: Update manpage to mention numa and futex Ramkumar Ramachandra
@ 2014-04-14 14:53 ` tip-bot for Ramkumar Ramachandra
0 siblings, 0 replies; 12+ messages in thread
From: tip-bot for Ramkumar Ramachandra @ 2014-04-14 14:53 UTC (permalink / raw)
To: linux-tip-commits
Cc: linux-kernel, acme, hpa, mingo, jolsa, dsahern, tglx, artagnon
Commit-ID: 95a2b3c0a9e2a8038edbf3f9776d5a3d76146459
Gitweb: http://git.kernel.org/tip/95a2b3c0a9e2a8038edbf3f9776d5a3d76146459
Author: Ramkumar Ramachandra <artagnon@gmail.com>
AuthorDate: Thu, 27 Mar 2014 19:50:18 -0400
Committer: Jiri Olsa <jolsa@redhat.com>
CommitDate: Mon, 14 Apr 2014 12:55:41 +0200
perf bench: Update manpage to mention numa and futex
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1395964219-22173-3-git-send-email-artagnon@gmail.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
tools/perf/Documentation/perf-bench.txt | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/tools/perf/Documentation/perf-bench.txt b/tools/perf/Documentation/perf-bench.txt
index 7065cd6..4464ad7 100644
--- a/tools/perf/Documentation/perf-bench.txt
+++ b/tools/perf/Documentation/perf-bench.txt
@@ -48,6 +48,12 @@ SUBSYSTEM
'mem'::
Memory access performance.
+'numa'::
+ NUMA scheduling and MM benchmarks.
+
+'futex'::
+ Futex stressing benchmarks.
+
'all'::
All benchmark subsystems.
@@ -187,6 +193,22 @@ Show only the result with page faults before memset.
--no-prefault::
Show only the result without page faults before memset.
+SUITES FOR 'numa'
+~~~~~~~~~~~~~~~~~
+*mem*::
+Suite for evaluating NUMA workloads.
+
+SUITES FOR 'futex'
+~~~~~~~~~~~~~~~~~~
+*hash*::
+Suite for evaluating hash tables.
+
+*wake*::
+Suite for evaluating wake calls.
+
+*requeue*::
+Suite for evaluating requeue calls.
+
SEE ALSO
--------
linkperf:perf[1]
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [tip:perf/urgent] perf bench: Fix segfault at the end of an 'all' execution
2014-03-27 23:50 ` [PATCH 3/3] perf bench: Fix segfault at the end of an 'all' execution Ramkumar Ramachandra
@ 2014-04-14 14:53 ` tip-bot for Ramkumar Ramachandra
0 siblings, 0 replies; 12+ messages in thread
From: tip-bot for Ramkumar Ramachandra @ 2014-04-14 14:53 UTC (permalink / raw)
To: linux-tip-commits
Cc: linux-kernel, acme, hpa, mingo, jolsa, dsahern, tglx, artagnon
Commit-ID: 5673872d4afd2584e075cf2b1adb2cccec46a0f3
Gitweb: http://git.kernel.org/tip/5673872d4afd2584e075cf2b1adb2cccec46a0f3
Author: Ramkumar Ramachandra <artagnon@gmail.com>
AuthorDate: Thu, 27 Mar 2014 19:50:19 -0400
Committer: Jiri Olsa <jolsa@redhat.com>
CommitDate: Mon, 14 Apr 2014 12:55:53 +0200
perf bench: Fix segfault at the end of an 'all' execution
At the end of
$ perf bench all
the program segfaults because it attempts to dereference a NULL
pointer. Fix this fault.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1395964219-22173-4-git-send-email-artagnon@gmail.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
tools/perf/builtin-bench.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index f600b74..1e6e777 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -86,7 +86,7 @@ static struct collection collections[] = {
/* Iterate over all benchmarks within a collection: */
#define for_each_bench(coll, bench) \
- for (bench = coll->benchmarks; bench->name; bench++)
+ for (bench = coll->benchmarks; bench && bench->name; bench++)
static void dump_benchmarks(struct collection *coll)
{
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [tip:perf/urgent] perf bench: Set more defaults in the 'numa' suite
2014-03-27 23:50 ` [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite Ramkumar Ramachandra
2014-04-09 12:16 ` Jiri Olsa
@ 2014-04-14 14:54 ` tip-bot for Ramkumar Ramachandra
1 sibling, 0 replies; 12+ messages in thread
From: tip-bot for Ramkumar Ramachandra @ 2014-04-14 14:54 UTC (permalink / raw)
To: linux-tip-commits
Cc: linux-kernel, mingo, acme, hpa, mingo, jolsa, dsahern, tglx, artagnon
Commit-ID: 40ba93e3aa001246110320edbe8cf2eb488c1fe7
Gitweb: http://git.kernel.org/tip/40ba93e3aa001246110320edbe8cf2eb488c1fe7
Author: Ramkumar Ramachandra <artagnon@gmail.com>
AuthorDate: Thu, 27 Mar 2014 19:50:17 -0400
Committer: Jiri Olsa <jolsa@redhat.com>
CommitDate: Mon, 14 Apr 2014 12:55:58 +0200
perf bench: Set more defaults in the 'numa' suite
Currently,
$ perf bench numa mem
errors out with usage information. To make this more user-friendly, let
us provide a minimum set of default values required for a test
run. As an added bonus,
$ perf bench all
now goes all the way to completion.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1395964219-22173-2-git-send-email-artagnon@gmail.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
tools/perf/bench/numa.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index d4c83c6..20697fb 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -1593,6 +1593,10 @@ static void init_params(struct params *p, const char *name, int argc, const char
p->data_rand_walk = true;
p->nr_loops = -1;
p->init_random = true;
+ p->mb_global_str = "1";
+ p->nr_proc = 1;
+ p->nr_threads = 1;
+ p->nr_secs = 5;
}
static int run_bench_numa(const char *name, const char **argv)
^ permalink raw reply related [flat|nested] 12+ messages in thread
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2014-03-27 23:50 [PATCH 0/3] Minor fixes around perf bench Ramkumar Ramachandra
2014-03-27 23:50 ` [PATCH 1/3] perf bench: Set more defaults in the 'numa' suite Ramkumar Ramachandra
2014-04-09 12:16 ` Jiri Olsa
2014-04-11 0:31 ` Ramkumar Ramachandra
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